Blender 4.5.15 LTS features important bug fixes. It is released on the v4.5 - Stable - LTS branch. You can switch to this by right-clicking on the Blender entry in your library, select Properties.... Open the Betas tab and select v4.5 - Stable - Stable.
Patch Notes
* Fix #146838: Windows/IME cancel composition on end IME. (db5671676a7)
* Crash: viewport garbage collector reads a freed object through an inactive-scene depsgraph. (#163701)
* Python: Opening a file and removing a scene causes crash. (#145084)
* Blender DELETES unsaved texture work on a texture timeout. (#164448)
* VSE: Scene strip has wrong bounding box. (#164944)
* UI: Remove auto-run preference from warning prompt, communicate risk. (9b01c5fd1b2)
* Fix: Core: Auto-run scripts trusted for unintended files. (752e3134302)
* Fix: Freestyle: Python style modules ignore auto-run setting. (a01db23d1e8)
* Fix: Materials: More unsanitized material slot index issues. (a204d52b534)
* Fix: EEVEE image texture node crash with invalid blend file. (8d6a9f9759a)
* Fix: Text Editor: Live edit should not be loaded from blend file. (f41fd04ba61)
* Refactor: Stop using `eval()` in Rigify code. (0a33430e6a6)
* Fix: Rigify: Consistently use getattr and repr instead of eval. (d916f1679c1)
* Fix: Anim: Remove Update Animated Transform Constraints operator. (de81cdb9a43)
* Fix several potential errors when reading corrupted DNA data. (af234c2d750)
* Fix: partial data used when a data-block fails to read. (0e6cf01e741)
* Fix: out-of-bounds struct reconstruction with inconsistent DNA sizes. (908fdae9cbb)
* Fix: out-of-bounds struct reconstruction with an invalid block count. (e6ba05d9b7e)
* Fix: out-of-bounds read from an invalid block struct index. (c57017661ae)
* Fix: null dereference reading a corrupt global or user-prefs block. (7d4b6dbe71b)
* Fix: null dereference freeing a partially-read window. (3410c36355e)
* Fix: null dereference linking a data-block that fails to read. (0c92f54ad85)
* Tests: add corrupt .blend reader files. (21f79293863)
* Fix: corrupt linked block silently treated as missing. (d13a810ffe5)
* Fix various issues in case linking fails to read a library blenfile. (532eea513d5)
* Core: Add more early return in invalid case in liblinking part of blendfile reading. (7eaf6c0dc59)
* Fix: Core: Crash with corrupt thumbnails causing integer overflow. (71c10a0217d)
* Fix: Core: Crash listing datablocks and previews with corrupt blend file. (94d99b362b0)
* Fix: Core: Crash with missing typeinfo freeing incompletely read node. (56c2236eabf)
* Fix: Core: Crash with too short blocks in blend file. (7de4986e74e)
* Fix: Core: Crash with blend file block of unexpected struct type. (5afc69b7a8d)
* Fix: Core: Crash with link placeholder without library in blend file. (c605a24798f)
* Fix: Core: Crash reading ID with missing asset metadata in blend file. (54734705a62)
* Fix: Core: Crash with link placeholder in archive library in blend file. (b4724b794d8)
* Fix: Core: Memory leak reading data with invalid size from blend file. (1533f91483c)
* Fix: Core: Layer collection resync stuck after invalid read. (1518d9a3e4f)
* Refactor: Point Cache: Simplify file IO functions. (fab04184ccb)
* Fix: Point Cache: Crashes reading corrupt files. (4f8a3270213)
* Fix: Point Cache: Crash with corrupt point indices in file. (d17af882149)
* Fix: Core: Struct size check rejects files with old cloth gravity bug. (57d0ea0028f)
* Fix: Core: Struct and array size check not checking negative sizes. (d7346886d2d)
* Fix: Core: Crash freeing link placeholders after failing to read library. (65963a25320)
* Fix: Core: Use after free with data-block failing to read from blend file. (75be001974c)
* Fix: Core: Out of bounds read with too short ID name in blend file. (e7b3b8f669e)
* Refactor: Core: Utilities to read structs with derived types. (b78573b06fe)
* Fix: Core: Crash with invalid boid rule type in blend file. (7254476d0d0)
* Fix: Core: Crash with modifier too small for its type in blend file. (bdcfa8f257c)
* Fix: Core: Crash with legacy grease pencil modifier wrong type. (c62e81e08d2)
* Fix: Core: Crash with grease pencil drawing or layer with wrong type. (2e292e730e7)
* Fix: Core: Crash with shader effect with wrong type. (037b759cd75)
* Fix: Core: Crash with line style modifier with the wrong type. (cbaeb2f96eb)
* Fix: Core: Crash with strip modifier with the wrong type. (a05f1731f21)
* Fix: Core: Crash with node interface item with the wrong type. (658150c448e)
* Fix: Core: Crash with viewer path element with the wrong type. (0d227f74337)
* Fix: Core: Crash with user menu item with the wrong type. (513fb271987)
* Fix: Core: Crash with space data with the wrong type. (dc7a5792b0b)
* Fix: Core: Crash with corrupt window area edges in blend file. (3881a489067)
* Fix: Core: Crash copying line style with invalid modifier type. (dada5c96d18)
* Fix: Core: Crash with node tree interface root panel of wrong type. (19ee153e4fd)
* Fix: Core: Crash freeing data-block that failed to read from blend file. (ef05e168f53)
For a detailed list of bug fixes in each release, see 4.5 LTS releases on blender.org
LTS Program
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The Blender team
